136327726478657 has 8 divisors (see below), whose sum is σ = 155804399351616. Its totient is φ = 116851374449712.

The previous prime is 136327726478651. The next prime is 136327726478689. The reversal of 136327726478657 is 756874627723631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-136327726478657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136327726478651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79299803 + ... + 81000704.

It is an arithmetic number, because the mean of its divisors is an integer number (19475549918952).

Almost surely, 2^{136327726478657} is an apocalyptic number.

It is an amenable number.

136327726478657 is a deficient number, since it is larger than the sum of its proper divisors (19476672872959).

136327726478657 is a wasteful number, since it uses less digits than its factorization.

136327726478657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160422007.

The product of its digits is 2987228160, while the sum is 74.

The spelling of 136327726478657 in words is "one hundred thirty-six trillion, three hundred twenty-seven billion, seven hundred twenty-six million, four hundred seventy-eight thousand, six hundred fifty-seven".